Dataset: lsd.dat Source: Wagner, Agahajanian, and Bing (1968). Correlation of Performance Test Scores with Tissue Concentration of Lysergic Acid Diethylamide in Human Subjects. Clinical Pharmacology and Therapeutics, Vol.9 pp635-638. Description: Group of volunteers was given LSD, their mean scores on math exam and tissue concentrations of LSD were obtained at n=7 time points. Variables/Columns Tissue Concentration 1-4 Math Score 8-12